KRN5-1 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: KRN5-1 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: KRN5-1. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: KRN5-1
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-039-6247
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 04/25/1977

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.

0.3120 inches minimum and 0.3130 inches maximum bore diameter, 26.0 rockwell c minimum and 32.0 rockwell c maximum race insert hardness rating, 55.0 rockwell c minimum and 55.0 rockwell c maximum outer ring hardness rating, 36.0 rockwell c minimum and 42.0 rockwell c maximum outer race member hardness rating, 36.0 rockwell c minimum and 42.0 rockwell c maximum inner member hardness rating

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-039-6247 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.3120 inches minimum and 0.3130 inches maximum
Hardness Rating: 36.0 rockwell c minimum and 42.0 rockwell c maximum inner member
Hardness Rating: 36.0 rockwell c minimum and 42.0 rockwell c maximum outer race member
Hardness Rating: 55.0 rockwell c minimum and 55.0 rockwell c maximum outer ring
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum race insert
Inner Member Width: 0.7340 inches minimum and 0.7440 inches maximum
Material: plastic polytetrafluoroethylene race liner
Material: steel comp 440c internal inner member
Material: steel comp 630 race insert
Material: steel comp 630 outer race member
Material: steel comp 630 outer ring
Outer Member Outside Diameter: 1.2450 inches minimum and 1.2550 inches maximum
Outer Member Width: 0.6500 inches nominal
Static Radial Load Rating: 21000 pounds
Style Designator: without insert or liner

Frequently Asked Questions

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What is the FSCG of the NSN 3120-01-039-6247?: The FSCG of the NSN 3120-01-039-6247 is 3120

Does the NSN 3120-01-039-6247 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-01-039-6247 require demilitarization?: Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 3120-01-039-6247 contain precious materials?: Precious metal content is unknown

Does NSN 3120-01-039-6247 contain hazardous materials?: Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.